WARNING: space prohibited between function name and open parenthesis '('
#42: FILE: lib/ref_tracker.c:68:
+	void __ostream_printf (*func)(struct ostream *stream, char *fmt, ...);

WARNING: line length of 83 exceeds 80 columns
#48: FILE: lib/ref_tracker.c:74:
+static void __ostream_printf pr_ostream_log(struct ostream *stream, char *fmt, ...)

WARNING: line length of 83 exceeds 80 columns
#57: FILE: lib/ref_tracker.c:83:
+static void __ostream_printf pr_ostream_buf(struct ostream *stream, char *fmt, ...)

total: 0 errors, 3 warnings, 0 checks, 101 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit a57e5972bb74 ("ref_tracker: have callers pass output function to pr_ostream()") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 3 warnings, 0 checks, 101 lines checked